Eyeglasses.



H. E. KIRSTEI'N & W. E. McDONELL EYEGLASSES APPLICATIQN man NOV. 2. wen.

Patented Apr. 9, 1918.

HENRY n; Kms'rnnv nnwrLLiAi/r n. nononnnn'or nocnns'rnn, new roan, nssren QRS TO E. ,KIRSEEIN SONS COMPANY, OF ROCHESTER, NEW YORK, A CORPORATION.

EYEGLASSES.

Patented Apr. 9, 1918.

Original application filed. September 23,1916, Serial No. 121,867. Divided and this application filed November 2, 1917. Serial No. 199,981.

To all whom it may concern:

Be it known that we, HENRY E. KIRSTEIN and WILLIAM E. MCDONELL, citizens of the United States, and residents of Rochester, in the county of Monroe andState of New York, have invented certain new and useful Improvements in Eyeglasses, of which the following is, a specification.

The present invention relates to eyeglasses, and more particularly to the type which employsa circular lens surrounded by a frame with means carried by the frame and projecting into a notch in the lens for the purpose of preventing the turning of the lens in the frame,.this application being a division of an application filed by us on September 23, 1916, Serial No. 121,867. An object of this invention isto provide a simple and inexpensive device for against turning. r To this and other ends locking the lens the invention consists of certain parts and combinations of parts all of which will be hereinafter described, the novel features being pointed out in the appended claims.

In the drawings Figure 1 is arear view of eyeglasses, in the form of spectacles, embodying the present invention;

Fig. 2 is an enlarged sectional view through one of the temple mountings, show terial, in this instance being formed from a pyroxylin" compound, such as celluloid, the two rims being connected by a bridge 3 having mountst at its ends clamped to therims. e

T he rims 2 are preferably provided with splits 5 in order that the lenses 1 may be fitted or removed from the frames. The

ing the two split ends and bridging the split,

- the'side walls of the groove being bendable onto the rim ends in order to clamp said ends. Temples 7 are connected to the mount ing 6 in any suitable manner, as by pivots.

In order to prevent the turning of the lenses 1, each lens is provided with a slot or notch 8 adapted to be positioned opposite the splits 5'. Within the split 5 and projecting into the slot or notch 8 is a device 9, in this instance in the form of a loop formed from wire, and having at least one, and preferably two, arms 10 adapted to lie between the mounting 6 and a frame 2 so as to be clamped between the frame and the mounting 6. As the rims shown are made of material which softens under the action of heat, and as heat is generally employed for softening them when the lenses are be ing inserted, the arms 10 will become partially embedded in the rims in the manner shown in Fig. 3, and to still further cause the interlocking between these arms 10 and the rims 2, the arms are provided at their free ends with eyes 11 which are adapted to receive portions of the rim in the manner shown at 12 in Fig. 2.

From the foregoing it will be seen that the lenses are held against turning within their rims by devices separate from the rims and lying in the splits of the rims to extend into notches in the lenses. .Each of these devices has at least one, and preferably two, oppositely-extending arms which lie between a rim and the mounting which clamps on the rim .on the opposite sides of the split to hold the split ends together and at the same time to secure the device in place.

i/Vhat we claim as our invention and desire to secure by Letters Patent is l. Eyeglasses comprising a lens formed with a notch, a split rim surrounding the lens, a separate device arranged in the split projecting into the notch and having an armextending therefrom to one side of the split, and a mounting engaging the rim on iii-ms extending on opposite sides of the opposite sides of the split and also engaging split, and a mounting engaging the rim on said arm. opposite sides of the split and also engag- 2. Eyeglasses comprising a lens formed ing seitl'arme.

with :1- notch, 2. split rim suerouncling the lens, a separate device arranged in the s slit HENRY E. KIRSTEIN. r0 est-121. into the notch and henn lllLLlAll l El, MCDONELLW 

